Blood sugars can take a while to settle down once you start treatment. It'll likely stay high for a couple of weeks and gradually lower. I find that if I don't eat my blood sugar can go up anyway so I don't starve myself. And if I don't eat I don't have a lot of energy and won't go do anything to burn calories and bring blood sugar down. Metformin is supposed to be taken with food but if you're continuing to have side effects, talk to your nurse/doctor about it. You're doing great so far!